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78
HYDRAULIC UNIT
BValve Lock
To avoid injury or death from crushing:
A Do not utilize the valve lock for tractor
maintenance or repair.
A The valve lock is to prevent accidental
actuation when implement is not in use or
during transport.
The control valve is equipped with a valve lock feature.
The control valve is locked in the neutral position.
The lock is not intended and will not prevent a leak down
of the implement during the period of storage.
(1) Lock lever
REMOTE HYDRAULIC CONTROL SYSTEM
(if equipped)
The hydraulic auxiliary control valves can be installed up
to triple segments.
BRemote Control Valve
There are two types of remote valves available for these
models.
A Double acting valve:
A Double acting valve with float position:
This valve may be placed in the float mode with the
control lever all the way forward. The cylinder is free to
extend or retract, letting an implement such as a
loader bucket follow the ground.
BRemote Control Valve Lever
The remote control valve lever directs pressurized oil flow
to the implement hydraulic system.
(A)
"Lock"
(B)
"Unlock"
[Example: Installing triple segment valve]
1st
Double acting valve
3rd
2nd
Double acting valve with float position
(1) Remote control valve lever with Double acting valve (1)
(2) Remote control valve lever with Double acting valve /
Float position (2)
(3) Remote control valve lever with Double acting valve (3)
Lever (1)
---
[A]
---
Port
[B]
---
Lever (2)
Z
[C]
In
Port
Float
[D]
Out
Lever (3)
---
[E]
---
Port
[F]
---
Port [A] [B] [C] [D] [E] [F]
A Do not hold the lever in the "REARWARD" or
"FORWARD" position once the remote cylinder has
reached the end of the stroke, as this will cause oil to
flow through the relief valve. Forcing oil through the
relief valve for extended periods will overheat the oil.
A When using the tractor hydraulic system to power front
loader, do not operate boom and bucket cylinders
simultaneously.
Pressure
Returning
Y
X
In
Out
Out
In
Y
X
In
Out
Out
In
Y
X
In
Out
Out
In
Coupler size
PT 1/2
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